Template for lock plate mortises



TEMPLATE FOR LOCK PLATE MOHTISES Filed May 20. 1930 zagz 521 z5 w W 51V/'f3 E 1E- E I N V EN TOR.'

A TTORNEY'.

Patented Apr. 10, 1934 UNITED STATES PATENT OFFICE 13 Claims.

This invention has for its object to provide a simple, eiiicient andreadily operated template for locating the mortise in the edge of anelement, as a door, to be provided with a mortise for receiving a lockplate, it being understood that door locks are set in recesses ormortises in the edge of the door so that the plate is flush with theedge surface of the door.

The invention consists in the novel features and in the combinations andconstructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanyingdrawing in which like characters designate corresponding parts in allthe views.

Figure l is an elevation of this template. Figure 2 is an end viewlooking downwardly or upwardly showing the same applied to an element,as a. door, which is shown in section. Figure 3 is a sectional view online 3-3, Figure 1.

Figure 4 is a fragmentary sectional view on line 4 4, Figure 1.

Although this template is particularly adapted for locating the mortisesfor lock plates, it will be understood that it is equally as useful inlocating the mortises and recesses in the edges of any other element.

This template comprises generally a body, mortise locating gages carriedby the body and adjustable to determine the length and width of themortise and means for supporting the body on the edge of the door orother element with the gages overlying the edge of the door and forcentering the gages so that the mortise will be located in the center orany other predetermined position in the edge of the door, during theoperation or the supporting or clamping means.

l designates the body which may be of any suitable form, size andconstruction, it being here shown as a plate rectangular in form withangular marginal anges 2 so that the body is in the form of a hollowpan, It is also provided with a lengthwise slot 3 in the bottom of thepan. The gages include side gages 4, 5 and end gages 6, 7. 'Ihe sidegages 4, 5 are adjustable toward and from each other to determine thewidth of the mortise and one of the end gages is adjustable toward theother which is fixed for determining the length of the mortise. The sidegages are connected through one of the end gages so that the adjustingmovement of either side gage is transmitted to the other.

In the illustrated embodiment of my invention, each side gage issupported by a pair of links 8, 9 pivoted at like ends at 10 to one ofthe side gages and at their other ends at 1l to the body, the links andthe gages being arranged so that the gages always move parallel toythemselves and to each other. Obviously, movement of the links in onedirection will move the corresponding gages 4, 5 outwardly away fromeach other and movement in the other direction will move them inwardlytoward each other. One of the end gages as 6 is iixed in any suitablemanner as by rivets 2 to one of the side gages as the gage 4 and isconnected to the other side gage as 5 by an adjustable or pin-and-slotconnection consisting of a slot 13 in the gage 6 and a threaded pin orscrew 14 extending through the slot and 70 threading into the gage 5,the screw having a. finger piece 15 at its outer end.

7 designates an adjustable end gage which is here shown as adjustablysecured to one of the side gages, as the side gage 4 and as slidablealong the other side gage 5. The end gage 7 is here shown as held in itsadjusted position by a clamping screw 17 extending through the gage 7and threading into a block or jaw 18 which clamps the underside of theside gage 4, the jaw 18 being provided with a tenon which interlocks ina groove in the underside of the gage 4. By loosening the screw 17,obviously, the end gage 7 can be slid along the side gage 4 to anydesired position. Obviously, by loosening the screw 14 and moving eitherone or the other of the side gages 4 or 5, the movement thereof will betransmitted through the connection 6 to the other gage and then when thescrew 14 is tightened, the side gages will be held in their adjustedspaced apart position, thus determining the width of the mortise andthen by loosening the screw 17, the end gage 7 can be moved toward orfrom the end gage 6, thus determining the length of the mortise.

The means for supporting the body on the edge of the door or otherelement, as here illustrated, comprises a pair of movable parts, asjaws, located at each end of the body, and means for operating the jawsand holding the body centered relatively to the edge of the door or foroperating the jaws, permitting the body to remain stationary.

20 and 21 designate the jaws of each pair, there being a pair at eachend of the body, these jaws being arranged to clamp the outer and innersides of the door. The operating member is shown as a screw common tothe jaws of each pair, the screw having right and left screw threadedconnection with the jaws 20, 21 respectively. The

screw is held from endwise movement relatively to the body so that whenthe screw is turned, the jaws will move toward or from each other, andhence the body and side gages are held centered relatively to the edgeof the door.

22 designates the screw or operating member having a handle 23 at oneend. `The means for holding the screw from endwise movement is hereshown as a collar 24 fixed on the screw and coacting with thrustbearings connected to the body. As here shown, the collar is located ina slot formed in a block 25 which is secured to the end of the body,there being a block 25 at each end of the body. Each of the jaws 20, 21is provided with means for slidably interlocking with the block orextensions 26 thereof to hold the jaws from turning during the turningmovement of the screw 22. In order that the body may conform to thebevel of the edge of the door, the body is connected to the blocks 25 byswivel joints 27.

In operation, the location of either the upper or lower end of themortise may be located by drawing a line on the edge of the door. Wewill assume that this line indicates the upper end of the mortise. Thelength and width of the mortise is determined by the length and widthofthe lock plate or other member to be set in the mortise. This factorhaving been determined, the operator loosens the screw 14 and adjuststhe gages 4, 5 so that they are separated a distance equal to the widthof the lock plate plus sufficient minimum clearance for the tool used tocut the recess. He then tightens the screw 14 maintaining or locking theside gages 4, 5 in their adjusted position. He then adjusts the end gage7 toward or from the gage 6 and in accordance with the length of thelock plate plus suihcient minimum clearance for the tool. The clearancesare about one-sixteenth of an inch. He then places the template on theedge of the door with the edge of the end gage 6 in line with the linebefore referred to, which has been previously placed on the door. If theedge of the door is bevelled, the body is turned so that the plate liesflatwise on the edge of the door, the swivel joints 27 permitting thisturning.

The bevel is so slight that the turning of the body about the swiveljoints does not upset, to any practical extent. the centering of themortise or does not materially displace the gages, or in other words,because the bevel is so slight, the gages can be set to locate themortise in the center of the edge of the door as if the edge of the doorwere not bevelled and the location of the mortise will not be upset bythe slight bevel. During the tightening of the operating members 22, thejaws 20, 21 are drawn toward each other clamping on opposite sides ofthe door without shifting the body to the right or left or upsetting thecentral location of the mortise or the gages which determine theposition of the mortise. After the template has been applied, and hencethe mortise located, the mortise can easily be routed out by suitabletools, as for instance, a router, set to a certain depth and guided bythe pan with the angular flanges 2.

This template is particularly advantageous in that it is readily appliedto the door or other element and accurately adjusted to the size of themortise to be cut and accurately located or centered on the door orother element.

What I claim is:

1. A template for mortises comprising a body, mortise locating gagescarried by the body and means for supporting the body on an element tobe provided with a mortise with the gages overlying an edge of saidelement, the body being swivelled to the supporting means for permittingthe body and the gages carried thereby to be shifted relatively to thesupporting means to conform to a bevel of the edge of said element.

2. A template for mortises comprising a body, mortise locating gagescarried by the body and means for supporting the body on an element tobe provided with a mortise with the gages overlying an edge of saidelement, said means comprising a block at each end of the body, a pairof movable parts slidably engaged with the block and coacting with saidelement to secure the body to said element, and an operating membercarried by the block for operating said parts, the body being swivelledat its ends to the blocks.

3. A template for mortises comprising a body, mortise locating gagescarried by the body, and means for supporting the body on an element tobe provided with a mortise with the gages overlying an edge of saidelement, said means comprising a block at one end of the body, a pair ofjaws for engaging the opposite faces of said element, the jaws havingmeans slidably engaging the block, an operating member having a rightand left screw threaded connection with the jaws respectively and meansfor holding the operating member from endwise movement, the body beingswivelled to the block.

4. A template for mortises comprising a body, mortise locating gagescarried by the body comprising side gages adjustable toward and fromeach other for determining the width of the mortise and connectionsbetween the side gages whereby movement of one gage effects thecorresponding movement of the other gage and means for supporting thebody on an element to be provided with a mortise with the gagesoverlying 'an edge of said element, said connections being locatedoutside of the area of the gaged opening, so as not to interfere withthe routing tool.

5. A template for mortises comprising a body, mortise locating gagescarried by the body comprising opposing side gages, connections betweenthe gages and the body permitting movement of the gages to determine thewidth of the mortise and connections between the gages whereby movementof one gage toward the other effects a corresponding movement of theother toward the first and vice versa and means for supporting the bodyon an element to be provided with a mortise with the gages overlying anedge of said element, all of said connections being located outside ofthe area of the gaged opening, so as not to interfere with the routingtool.

6. A template for mortises comprising a body, mortise locating gagescarried by the body comprising a pair of side gages, links pivoted atlike ends respectively to each gage and at their other ends to the body,the links and the gages being arranged so that the gages always moveparallel to themselves and to each other, a connection between the gageswhereby the movement of one gage is transferred to the other and meansfor supporting the body on an element to be provided with a. mortisewith the gages overlying an edge of said element.

7. A template for mortises comprising a body, mortise locating gagescarried by the body comprising opposing sides gages adjustable towardand from each other, and end gages, one of which is carried by one ofthe side gages and adjustable along the same and the other of which isxed to y one of the side gages and adjustably connected to the otherside gage and serving to transmit the movement of one side gage to theother.

8. A template for mortises comprising a body, mortise locating gagescarried by the body comprising a pair of side gages, connections betweenthe side gages and the body permitting shifting movement of the gagestoward and from each other to determine the width of the mortise, an endgage connecting like ends of the side gages and being xed to one sidegage, a pin and slot connection between the end gage and the other sidegage, an adjustable end gage carried by one of the side gages andadjustable toward and from the other end gage to determine the length ofthe mortise, said pin and slot connection being capable of beingtightened when the side gages are in their adjusted position and meansfor supporting the body on an element to be provided with a mortise withthe gages overlying an edge of said element.

9. A template for mortises comprising a body, mortise locating gagescarried by the body and comprising side gages and end gages, linkspivoted at like ends to each of the side gages at their other ends tothe body, the links and the side gages being arranged so that the gagesalways move parallel to themselves and to each other, whereby movementof the links moves the side gages toward and from the other to determinethe width of the mortise, an end gage ixed to one of the side gages, apin and slot connection between the end gage and the other side gage andserving to transmit the motion of one side gage to the other, said pinand slot connection being capable of being tightened when the side gagesare in their adjusted position and a second end gage adjustably mountedon one of the side gages and movable toward and from the other end gagetb determine the length of the mortise and means for supporting the bodyon an element to be provided with a mortise with the gages overlying anedge of said element.

l0. A template for mortises comprising an elongated body, mortiselocating gages carried by the body and means for supporting the body onan element to be provided with. a mortise with the gages overlying anedge of said element, the body being movable relative to the supportingmeans about an axis extending lengthwise of the body for permitting thebody and the gages carried thereby to be moved relatively to thesupporting means to conform with the bevel of an edge of said element.

11. A template for mortises comprising a body, mortise locating gagescarried by the body and including opposing side gages adjustable towardand from each other, and end gages, one of which is fixed to one of theside gages and adjustably connected to the other side gage to transmitthe movement of one side gage to the other, the other end gage beingadjustable relative to the rst end gage.

l2. A template for mortises comprising a body, mortise locating gagescarried by the body and including a pair of said gages, connectionsbetween the side gages and the body permitting shifting movement of thegages toward and from each other to determine the width of the mortise,an end gage connecting likeends of the side gages and being fixed to oneside gage, a pin and slot connection between the end gage and the otherside gage, a second end gage adjustable toward and from the other endgage to determine the length of the mortise, said pin and slotconnection being capable of being tightened when the side gages are intheir adjusted position and means for supporting the body on an elementto be provided with a mortise with the gages overlying an edge of saidelement.

13. A template for mort-ises comprising a body, mortise locating gagescarried by the body and including side gages and end gages, linkspivoted at like ends to each of the side gages at their other ends tothe body, the links and the side gages being arranged so that the gagesalways move parallel to themselves and to each other, whereby movementof the links moves the side gages toward and from the other to determinethe width of the mortise, an end gage xed to one of the side gages, apin and slot connection between the end gage and the other side gage andserving to transmit the motion of one side gage to the other, said pinand slot connection being capable of being tightened when the side gagesare in their adjusted position and a second end gage adjustabie towardand from the other end gage to determine the length of the mortise andmeans for supporting the body on an element to be provided with amortise with the gages overlying an edge of said element.

ELMER P. SACREY.

